PHP Warning: preg_match_all(): Compilation failed: missing closing parenthesis

Hello,

Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
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We might need to take a closer look at the settings. Please edit the first post on this ticket and include your WP logins in the designated Sensitive Data section.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:

https://wordpress.org/plugins/temporary-login-without-password/

You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):

https://wordpress.org/plugins/wp-security-audit-log/

We really look forward to helping you.

Hello AIDD,

Thank you for contacting Rank Math today.

This error can be caused if you happen to have parenthesis not closed in your focus keyword or meta data. If not, would love to take a closer look at your site and the settings to be able to determine the root cause of the problem

Looking forward to helping you. Thank you.

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Hello,

Thank you for the follow up.

I can seem to located the access detail. Please share them so we can look further in to the settings.

Looking forward to helping you. Thank you.

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My colleague is asking for your:
WordPress Login URL:
Username:
Password:

And a screenshot if you are seeing it in the frontend. If you are only seeing it in the error logs, you can ignore them because I suppose the log is old.

Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.

Hello,

Please talk to your web hosting provider. These issues have nothing to do with Rank Math.

I am closing this ticket since there is nothing related to Rank Math that we can help you with. If you have any Rank Math related query, please open a new ticket.